A degradation determination device for a secondary battery (50) is used for a hybrid vehicle (20), is configured to determine degradation of the secondary battery (50), and includes a processor. The processor is configured to determine whether predetermined charge control is executed based on a vehicle speed (88), an accelerator operation amount (84), and a fuel injection amount or a rotational speed. The processor determines that degradation of the secondary battery (50) has progressed when a charge frequency is high compared to when the charge frequency is low. The charge frequency is the ratio of the time for which the predetermined charge control is executed to a required time for a predetermined period.


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    Title :

    DEGRADATION DETERMINATION DEVICE FOR SECONDARY BATTERY


    Additional title:

    VORRICHTUNG ZUR BESTIMMUNG DER ALTERUNG EINER SEKUNDÄRBATTERIE
    DISPOSITIF DE DÉTERMINATION DE DÉGRADATION POUR BATTERIE SECONDAIRE


    Contributors:

    Publication date :

    2022-05-04


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion / G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung



    SECONDARY BATTERY DEGRADATION DEGREE DETERMINATION DEVICE

    YAMASHITA YOSHIYA | European Patent Office | 2021

    Free access

    DEGRADATION DETERMINATION DEVICE FOR SECONDARY BATTERY

    YAMASHITA YOSHIYA | European Patent Office | 2022

    Free access

    DEGRADATION DETERMINATION DEVICE FOR SECONDARY BATTERY

    YAMASHITA YOSHIYA | European Patent Office | 2022

    Free access